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Finding the Fourth Proportional to 56,291.39, 77,669.78 and 33,626.93

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Solution

The fourth proportional to 56,291.39, 77,669.78 and 33,626.93 is: 46,397.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,291.39 : 77,669.78 = 33,626.93 : x
  2. Step 2: Convert to fraction form
    56,291.39/77,669.78 = 33,626.93/x
  3. Step 3: Cross multiply
    56,291.39x = 77,669.78 × 33,626.93
  4. Step 4: Simplify right side
    56,291.39x = 2,611,795,698.69
  5. Step 5: Solve for x
    x = 2,611,795,698.69/56,291.39
  6. Step 6: Final answer
    x = 46,397.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.